The Napoli coach has the utmost respect for Jurgen Klopp's side, whom he expects to go all out for the win that they need to stay alive in their Champions League group
The Spanish coach is well aware that the Partenopei, who are coming off the back of two successive defeats in Serie A, are going up against one of the best sides on the continent but is taking great encouragement from the manner in which his players have performed in three of their Group F games to date.
After collecting nine points thus far, Napoli go into the game knowing a draw would be enough to send them through to the last 16.
"We are up against really top-class opponents, whom I respect tremendously," Benitez told reporters on Monday. "They have earned this from their great performances in Europe last season.
"I love such duels. It will be a real gauge of how far we have come.
"Everyone has to be there. I expect the midfielders to help out the defence and, when we are in possession, our defence has to support our attacks. I expect a cohesive team effort.
"We have done well in three of our four games so far, right from the kick-off. Only at Arsenal did things not go the way we would have liked.
"The team is still developing [and], even with a defeat or a draw, we would still have the chance to continue in two weeks' time.
"Both teams have injuries and we believe that Dortmund will come out and attack. We will have to focus on finding ways to defend and at the same time hurt them with our attacks."